100 Science Words that Start With J

Prev Article Next Article

Jump into the joy of science with jargon starting with J! It’s a journey through ‘joules,’ which measure energy, to the jigsaw puzzles of ‘genetics.’

We’ve just the right glossary to join together all the J science words you need, jotted down with easy definitions that make science just plain fun and easy to understand.

Science Words That Start With J

Here is the list of common science words with J;

Jablonski diagram
Jacobi method
Jahn-Teller effect
Janus-faced
Jet stream
Joule
Jovian
Junction
Juxtaposition
J-curve
Jacobian matrix
JAK-STAT pathway
Jitter
Juxtaglomerular apparatus
Jansky
Josephson effect
Jump diffusion
Juxtacrine signaling
Jade
Junction potential
Juxtamedullary nephron
Jovian planet
Juxtapose
Janus kinase
Joint
Jitterbug
Joint probability
Juxtaposition error
Jugular vein
Jumbo jet
J-coupling
Jumping gene
Juvenile hormone
Juxtapositional growth
Judicious
Jump process
Joy
Juxtaglomerular cells
Juggernaut
Jet engine
Jitteriness
Juxtapositional fault
Jigsaw puzzle
Joule heating
Judgement
Jump rope
Joint venture
Juxtapositional dislocation
Jaundice
Juxtapositional strain
Jigsaw
Joint stiffness
Juxtapositional fold
Javelin throw
Joint mobility
Juvenile delinquency
Juxtapositional foliation
Jumper cable
Jamming
Joint inflammation
Juxtapositional metamorphism
Javelin
Joint replacement
Juxtapositional deformation
Jigsaw piece
Judo
Jellyfish
Joint disorder
Juxtapositional faulting
Jumbled
Jargon
Joint instability
Juxtapositional shear
Jet lag
Jockey
Jolt
Joint range of motion
Jawbone
Journey
Juxtapositional fold axis
Jigsaw cutter
Jockey wheel
Joint pain
Juxtapositional fabric
Javelina
Jackknife
Judo throw
Joint capsule
Juxtapositional cleavage
Jumbled mess
Joint locking
Juxtapositional tilting
Jet ski
Jockeying
Jumble
Juxtapositional exhumation
Jackal
Juxtapositional folding

Related: Science Words A to Z

science words that start with j

Explore More Science Words:

A – B – C – D – E – F – G – H – I – J – K – L – M – N – O – P – Q – R – S – T – U – V – W – X – Y – Z

Science Words That Start With J (By Grade)

Science Words That Start With J (4th Grade):

Jellyfish
Jupiter
Jet
Joule
Jackal
Jigsaw puzzle
Jet stream
Jaw
Joint
Javelin
Journal
Jolt
Jumper
Jet engine
Jaguar
Jigsaw
Jockey
Juvenile
Jam
Jumble

Science Words That Start With J (5th Grade):

Jupiter
Jet propulsion
Joule’s law
Joule heating
Jet lag
Jurassic period
Jovian planets
Jet stream
Jigsaw puzzle
Javelin throw
Journal article
Juxtaposition
Jellyfish sting
Jawbone
Joule-Thomson effect
Jatropha
Jacuzzi effect
Jounce
Joint inflammation
Jumbo jet

Science Words That Start With J (6th Grade):

Jupiter’s moon
Joule-Thomson coefficient
Joule’s experiment
Jet engine design
Jovian atmosphere
Junctional complex
Juxtaposed genes
Joint range of motion
Joule per mole
Jute fiber
Jovian magnetosphere
J-shaped growth curve
Jet fuel
Joule expansion
Jurisdiction
Jumping gene
Jacobian matrix
Jurassic fossil
Joule heating effect
Juvenile hormone

Science Words That Start With J (7th Grade):

Jumping spider
Joule-Thomson inversion
Joule-Kelvin effect
Juxtacrine signaling
Jurkat cells
Jet stream patterns
Juxtaglomerular apparatus
Jacobian determinant
Joint disorder
Juxtapositional gene regulation
Jensen’s inequality
Joubert syndrome
Junction potential
Jitter analysis
Jet velocity
Java Programming
Joint moment
Juxtamedullary nephron
Jackfruit
Job’s method

Science Words That Start With J (8th Grade):

Joule-Thomson cooling
Jovian moon
Jacobian transformation
Juxtaposition analysis
Jackdaw
Jet lag syndrome
Jaccard index
Jensen-Shannon divergence
Joint torque
Jovian aurora
Jatropha biodiesel
Judd-Ofelt theory
Jet impingement
Jacobian iteration
Juxtaglomerular cell
Jamin interferometer
Jordan canonical form
Joint angle sensor
Jovian magnetodisk
Jet mixing

Science Words Starting With J (By Subject)

Physics Words That Start With J:

Joule
Joule’s law
Joule-Thomson effect
Jounce
Joule per kelvin
Jacobian matrix
Jet stream
Josephson effect
Jump discontinuity
J-coupling
Jerk
Jansky
Joule heating
Josephson junction
Joule-Thomson coefficient
Jitter
Jacobi identity
Joint probability
Jovian planets
Joule-second

Chemistry Words That Start With J:

Jamming
Jahn-Teller effect
Jacobian determinant
Juxtaposition
J-aggregate
Jominy end-quench test
Jump diffusion
Joule-Thomson inversion curve
Juxtaposition polymerization
Jarosite
Jar test
Jordan form
Jod-Basedow phenomenon
Josephson voltage standard
Jatropha oil
Jet dyeing
Joining
Juice concentrate
Junction potential
Juice extractor

Biology Words That Start With J:

Juxtacrine
J-shaped curve
Jurkat cells
Jugular vein
Juncture
Juxtaglomerular apparatus
Juxtamedullary nephron
Juvenile
Juniper berries
Jatropha
Jablonski diagram
Jod-Basedow effect
Jacobsen syndrome
Jackfruit
Jacobson’s organ
Jacalin
Jaharis reaction
Jackdaw
Jade plant
Jambolan

Math Words That Start With J:

Joint variation
Jordan curve
Jacobi iterative method
Jump discontinuity
Jacobian matrix
Join
Jordan form
Jaccard index
Joint probability distribution
Juxtaposition
Jump function
Jordan’s lemma
Justification
Jump process
Jitter
Janko group
Jacobian determinant
Jensen’s inequality
Joint distribution function
Julian year

Physical Science Words That Start With J:

Joule
Joule’s law
Jet stream
Joule-Thomson effect

Scientific Words With J:

Juxtaposition
Jovian
Jettison
Joule
Juvenile Phase
Jost’s Law
Jet Propulsion
Jurassic
Jejunum
Junction
J-curve
Jansky
Jacobsen Syndrome
Jahn-Teller Effect
Japanese Beetle
Jacobson’s Organ
Jambalaya Mutation
Jumper (in electronics and physics)
Jugular Vein
Juggernaut (in the context of a powerful or massive force)

Forensic Words with J:

Jawline (used in forensic reconstruction)
Jigsaw Fit (in bone fragment analysis)
Judicial Evidence
Juror Misconduct
Justice System
Juvenile Prints
Jumped Bail
Judicial Review
Jurisdiction
Jury Tampering
Justifiable Homicide
Jailhouse Informant
Justice of the Peace
Judgment of Conviction
Juxtaposition Analysis (comparing known samples with evidence)
Jackknife (a tool that may be used in crimes)
Jacket (bullet casing)
Jagged Wound
Jalopy (older vehicle, sometimes involved in crimes)
Janitorial Forensics (cleaning can affect a crime scene)

Science Words with J and Their Meanings:

Joule: Unit of energy in the International System.
Jurassic: Geological period about 201 to 145 million years ago.
Jet Stream: High-speed winds in Earth’s upper atmosphere.
Jupiter: Largest planet in our solar system.
Juxtaposition: Placing two elements close together for comparison.
Jejunum: Part of the small intestine in mammals.
Joule’s Law: Principle stating heat produced by electric current.
Juncaceae: Family of flowering plants, including rushes.
Jacobian: Matrix of first-order partial derivatives.
Jasmonic Acid: Plant hormone involved in growth, and reproduction.
Jovian: Relating to Jupiter or the outer giant planets.
Juxtapose: To place different things side by side.
Jabiru: Large stork of the Americas.
Jadeite: Pyroxene mineral, forms in metamorphic rocks.
Jamming: Interference with signal transmission.
Janus Particle: Particles with two distinct physical properties.
Jargon: Specialized language used in a particular field.
Jeopardy: Exposure to danger or risk.
Jerboa: Small, hopping rodents of Asia and North Africa.
Jet: Fast stream of liquid or gas.
Jettison: Throw or drop from an aircraft or ship.
Jigsaw: Tool for cutting irregular curves.
Jingoism: Extreme patriotism, aggressive foreign policy.
Jitter: Fluctuation in the timing of a signal.
Joulemeter: Device for measuring energy delivered.
Juxtapositional: Being placed side by side.
Jugular: Relating to the neck or throat.
Jumping Gene: DNA sequence that changes position.
Jurisprudence: Theory or philosophy of law.
Juxtapositional Analysis: Comparative study of different elements.